会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • LIQUID CRYSTAL COLOUR FILTER FOR ELECTRONIC PHOTOGRAPHY AND FOR DISPLAYS
    • 用于电子摄影和显示的液晶彩色滤光片
    • WO1996010211A1
    • 1996-04-04
    • PCT/SE1995001092
    • 1995-09-25
    • VICTOR HASSELBLAD ABDAHL, Ingolf
    • VICTOR HASSELBLAD AB
    • G02F01/1347
    • G02B27/288G02F1/13473G02F1/141
    • A liquid crystal switchable colour filter is described. For electronic photography it can be configured to switch between the colours cyan, magenta, and yellow, to get good properties for colour separation. It could alternatively be configured to switch between the colours red, green, blue and colourless for display purposes, e.g. in field sequential colour displays. The filter consists of a stack of plates, the first and seventh plate being polarizers, the second, fourth, and sixth plate being retarder plates (synonym "phase plates" or "birefringent plates") or groups of retarder plates, the third and fifth being liquid crystal panels (cells), that could be a ferroelectric smectic-C cell in the bookshelf geometry, and the eighth plate being a passive colour filter. The optical properties of this plate combination can be optimised by varying the thicknesses of the components and the angles between the optical directions along the plates.
    • 描述了一种液晶可切换滤色器。 对于电子摄影,它可以配置为在青色,品红色和黄色之间切换,以获得良好的颜色分离性能。 也可以配置为在红色,绿色,蓝色和无色的颜色之间切换以进行显示。 在场顺序彩色显示。 过滤器由一叠板组成,第一和第七板是偏振器,第二,第四和第六板是延迟板(同义词“相位板”或“双折射板”)或延迟板组,第三和第五板 是液晶板(电池),其可以是书架几何中的铁电近晶C电池,第八板是无源滤色器。 可以通过改变部件的厚度和沿着板的光学方向之间的角度来优化该板组合的光学性质。
    • 3. 发明申请
    • CAMERA BELLOWS AND A METHOD FOR PRODUCING THE SAME
    • 相机贝壳及其制造方法
    • WO1996027150A1
    • 1996-09-06
    • PCT/SE1996000228
    • 1996-02-20
    • VICTOR HASSELBLAD ABPAPPILA, Lars
    • VICTOR HASSELBLAD AB
    • G03B17/04
    • G03B17/045
    • A camera bellows comprising a substantially rectangular, tubular body having two ends, the walls of which are provided with folds for extensibility, said folds extending perpendicularly to the longitudinal direction of the body, and reinforcements for retaining the rectangular shape of the bellows, wherein alternating elastic and rigid folds are provided, said elastic folds enabling transverse displacements of one end of the body relative to the other whilst the rigid folds serve to retain a free optical path through the bellows during said displacements. The invention also relates to a method for producing the above described camera bellows, said tubular body being formed by folding a sheet comprising a lustreless non-reflective inner lining, a weather-resistant outer lining and reinforcement strips laminated therebetween on fold surfaces adjacent to the folds, wherein said elastic folds are obtained in that the fold-surfaces of such a fold are free of reinforcement strips and that said inner lining and outer lining are made of elastic materials.
    • 一种相机波纹管,包括基本上矩形的管状主体,其具有两个端部,其两端设置有用于伸展的折痕,所述折叠部垂直于主体的纵向方向延伸,以及用于保持波纹管的矩形形状的加强件,其中交替 提供弹性和刚性折叠,所述弹性折叠使得主体的一端相对于另一端能够进行横向位移,而刚性折叠用于在所述位移期间保持通过波纹管的自由光路。 本发明还涉及一种用于制造上述相机波纹管的方法,所述管状主体通过折叠包括无光泽的非反光内衬,耐候性外衬和在其之间叠加的折叠表面上的加强条来折叠而形成 其中所述弹性褶皱的获得是这样的折痕的折叠表面没有加强条,并且所述内衬和外衬是由弹性材料制成的。
    • 5. 发明申请
    • DEVICE AND METHOD FOR FACILITATING THE FOCUSING OF A CAMERA
    • 促进摄像机聚焦的装置和方法
    • WO1996027149A1
    • 1996-09-06
    • PCT/SE1996000257
    • 1996-02-29
    • VICTOR HASSELBLAD ABPETTERSSON, ErlandNORDLUND, Per
    • VICTOR HASSELBLAD AB
    • G03B13/26
    • G03B13/26
    • A device and a method for facilitating the focusing of a camera during a so-called tilt operation, in which an image plane/focusing plane of a camera is angled relative the optical axis of an objective lens or vice versa, in order to obtain an inclined plane of focus, the camera being provided with a focusing screen located in said image plane/focusing plane and an optical viewing location, the optical axis of which coincides with the optical axis of said focusing screen, said tilt operation resulting in the exiting light from the focusing screen being directed away from said viewing location, wherein an optical wedge is located between said focusing screen and said viewing location in such a way as to redirect the exiting light to said viewing location at which an eyepiece or an observer's eye is located. In a preferred embodiment, said optical wedge is a fresnel prism plate located adjacent to said focusing screen on the side of the exiting light.
    • 一种用于在所谓的倾斜操作期间促进相机的聚焦的装置和方法,其中相机的图像平面/聚焦平面相对于物镜的光轴成角度,反之亦然,以便获得 相机设置有位于所述图像平面/聚焦平面中的聚焦屏幕,光学观察位置的光轴与所述聚焦屏的光轴重合,所述倾斜操作导致出射光 从所述聚焦屏幕被引导离开所述观看位置,其中光楔位于所述聚焦屏和所述观看位置之间,以使所述出射光重定向到所述目镜或观察者眼睛所位于的观察位置 。 在优选实施例中,所述光楔是在出射光侧面与所述聚焦屏相邻的菲涅尔棱镜板。